Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
add missing _.intersection tests
optimized-intersection
remove unneeded other variable
remove _.index in favor of _.contains in _.intersection
use String instead of function(o){ return '' + o; }; thanks @megawac

https://github.com/jashkenas/underscore/commit/a315e9f4473005a8310540b16d565519a9556106#commitcomment-5590098
_.property support for null and undefined
use each (rather than _.each) internally
Merge pull request #1526 from davidchambers/each

use each (rather than _.each) internally
Merge pull request #1512 from davidchambers/intersection

add missing _.intersection tests
remove aliases for _.each and _.some
remove braces
Merge branch 'optimized-intersection' of https://github.com/mehdishojaei/underscore into optimized-intersection
one-liner variable declarations
test node 0.10.x version on travis and update phantomjs version.

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>
Merge pull request #1529 from appleboy/patch

test on node 0.10.x version and update phantomjs version
reference "filter" rather than its alias, "select"
Merge pull request #1531 from davidchambers/replace-alias

reference "filter" rather than its alias, "select"
Merge pull request #1528 from davidchambers/remove-aliases

remove aliases for _.each and _.some